Last updated: August 9, 2001

The latest developers release of the Gemini Nucleus is version 0.1.2 and is available for download.

The Gemini Nucleus version 0.1.3 is being developed. The latest - possibly unstable - source code is available from the CVS. A note on version numbering can be found here. It is possible to boot the Gemini Nucleus from a floppy disk. The documentation sources are also available from CVS (LyX format). Also have a look at the screen shot.

Implemented features:

• Scheduler
• Protected Control Transfers (PCT)
• Capability support
• IRQ handling
• Address space management
• I/O port control
• SMP detection
• Full color debug output
• System calls:
  • yield
  • upcalls_set
  • pct_register
  • pct
  • pde_set (using capabilities)
  • pte_set (using capabilities)
  • irq_hook (using capabilities)
  • irq_enable (using capabilities)
  • irq_disable (using capabilities)
  • port_enable (using capabilities)
  • port_disable (using capabilities)
  • preempt_enable (using capabilities)
  • preempt_disable (using capabilities)
  • quantum_allocate
  • quantum_free
  • event_generate
  • execute
  • exit
  • kill
  • wait
  • capability_create
  • capability_duplicate
  • capability_grant
  • capability_acquire
  • capability_verify
  • info

Currently we are finishing the design of the Gemini Nucleus, writing the documentation and working on the code.